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② Owen wouldn’t eat anything unless he cooked it 吃他自己做的飯菜。 ③ We will have a piic in the park this Sunday unless it rains or it’s very cold. 除非下雨或天很冷 , 我們將在本周日去公園野餐 。 ④ A piece of chewing gum stuck to my shoe. 一片口香糖粘在了我鞋上。 ⑤ He always sticks to his promise. 他總是堅守自己的諾言。 ⑥ If you stick_to the truth, you’ve nothing to fear. 你要是堅持真理就可以無所畏懼。 2(教材 P35)If burns are on arms or legs,keep them higher than the heart, if_possible. 如果燒傷的部位在臂部或腿部,盡可能把手臂或腿抬到高于心臟的位置。 【 點(diǎn)津 】 if possible如果可能的話,是 if引導(dǎo)的條件狀語從句的省略形式,相當(dāng)于 if it is possible。 ① If possible, try to speak English as often as you can. 如果可能的話,盡可能經(jīng)常地講英語。 (1)if any如果有的話; (2)if necessary如果有必要的話; (3)if so如果是這樣的話; (4)if not如果沒有。 歸納拓展 ② Will you be free this evening?If_so,let’s go to the concert together. 你今晚有空嗎 ? 如果有 , 我們一起去聽音樂會吧 。 ③ Is anybody feeling cold? If not,let’s open the windows. 有人感到冷嗎?如果沒有的話,我們把窗戶打開。 ④ If_necessary, you can turn to me for help at any time. 有必要的話,你可以隨時向我們求助。 3(教材 P38)John was studying in his room when he heard screaming. 約翰正在房間里學(xué)習(xí),突然聽到一聲尖叫。 【 點(diǎn)津 】 when在此句中意為 “ 這時 ,突然 ” ,相當(dāng)于 at this/that time,常用于以下結(jié)構(gòu)中: be doing...when...正在 ?? 這時 ?? be about to do...when...正打算做 ?? 這時 ?? be just going to do...when...正要 ?? 這時 ?? had just done...when...剛做了 ??這時 ?? be on the point of doing...when...正要 ?? 這時 ?? ① We were_about_to_leave_when a big noise came from the next room.我們正要離開時隔壁發(fā)出了巨大的響聲 。 ② We were discussing the problem when there was a power 正在討論那個問題,這時停電了。 ③ I was on the point of calling him when he came in. 我正要給他打電話,這時他進(jìn)來了。 跟蹤訓(xùn)練 1. (2022高考江蘇卷 )It sounds like something is wrong with the car’s , we’d better take it to the garage immediately. A. Otherwise B. If not C. But for that D. If so 解析:選 D。句意為:汽車的發(fā)動機(jī)聽上去好像出了問題。如果這樣的話 ,我們最好馬上把車開到修理廠。 if so假如這樣的話,符合題意,所以選 D。otherwise否則; if not如果不 ?? ;but for that要不是那樣的話,均不符合題意。 2. (2022高考課標(biāo)全國卷 )The little boy won’t go to sleep ________ his mother tells him a story. A. or B. unless C. but D. whether 解析:選 B。句意為:除非媽媽給他講故事,否則小男孩就不去睡覺。本題考查連詞。 or或者,否則; unless除非; but但,除 ?? 之外; whether是否。根據(jù)語境可知,這里用 unless表示 “ 除非 ?? 否則 ??” 。 3. Once a decision has been made,all of us should ________ it. A. direct to B. stick to C. lead to D. refer to 解析:選 B。 stick to堅持; lead to導(dǎo)致;refer to參考 , 查閱 。 句意為:一旦做出決定 , 我們都應(yīng)該堅持它 。 4. She opened her eyes with a start and was about to cry________ she heard her father urgently telling her to keep quiet. A. while B. when C. before D. after 解析:選 B。 句意為:她猛地睜開眼睛 , 剛要哭 , 這時她聽到她父親急忙告訴她要保持安靜 。 be about to do ...為固定句型,其中的 when為并列連詞,相當(dāng)于 and at that time。 5. He is always thinking more of himself, seldom, ________,offering to help others. A. if never B. if ever C. if possible D. if any 解析:選 B??疾闋钫Z從句的省略。 if ever是 if he ever offers to help others的省略形式。 本部分內(nèi)容講解結(jié)束 按 ESC鍵退出全屏播放